Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Graphene activated metal organic framework electrode material and preparation and applications thereof

A technology for electrode materials and activated metals, applied in the field of electrochemical materials, can solve problems such as low energy density and poor electrical conductivity of materials, and achieve the effects of high energy density, excellent electrical conductivity, and high specific capacity

Active Publication Date: 2016-08-10
上海舒弗设备制造有限公司
View PDF6 Cites 27 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the material conductivity of this system is poor, resulting in low energy density, so it is necessary to continue to explore new MOF electrode materials

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Graphene activated metal organic framework electrode material and preparation and applications thereof
  • Graphene activated metal organic framework electrode material and preparation and applications thereof
  • Graphene activated metal organic framework electrode material and preparation and applications thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Weigh 1mmol of nickel acetate, 1mmol of 2,2'-bipyridine-4,4'-dicarboxylic acid organic ligand and 50mL of DMF solution, stir evenly, transfer to the reaction kettle, keep the reaction temperature at 120°C for 24h, and wash by centrifugation , dried under vacuum at 85°C to obtain the Ni-MOF structure material, which passed the test of N 2 The adsorption-desorption isotherm obtained BET is 1869m 2 / g. Such as figure 2 As shown, the crystal structure diagram of Ni-MOF along the [100] direction, it can be seen that the organic ligands of 2,2'-bipyridyl-4,4'-dicarboxylic acid stack parallel to the (010) crystal plane, and Nickel acetate is strongly complexed.

[0028] Weigh 2.0g of the above-mentioned Ni-MOF structure material into a beaker, add 40mL of deionized water for ultrasonic dispersion (ultrasonic power and frequency are 100W and 40kHz, respectively), then add 100mg of graphene, ultrasonically react for 30min, and wash and dry to obtain Graphene activated metal...

Embodiment 2

[0034] Weigh 1mmol of cobalt acetate, 1mmol of 2,2'-bipyridine-4,4'-dicarboxylic acid organic ligand and 50mL of DMF solution, stir evenly, transfer to the reaction kettle, keep the reaction temperature at 120°C for 24h, and wash by centrifugation , dried under vacuum at 85°C to obtain the Co-MOF structure material.

[0035] Weigh 2.0g of the above-mentioned Co-MOF structure material into a beaker, add 40mL of deionized water for ultrasonic dispersion (ultrasonic power and frequency are 100W and 40kHz, respectively), then add 20mg of graphene, ultrasonically react for 30min, and wash and dry to obtain Graphene activated metal organic framework electrode material GNS--Co-MOF.

[0036] The GNS--Co-MOF electrode material, binder and conductive carbon black were uniformly dispersed in NMP according to the mass ratio of 85:10:5, and then the electrode slurry was applied to the foamed nickel by a roller machine, using 3M KOH aqueous solution is used as the electrolyte to assemble t...

Embodiment 3

[0039] Weigh 1mmol of copper acetate, 2mmol of 2,2'-bipyridine-4,4'-dicarboxylic acid organic ligand and 50mL of NMP solution, stir evenly, transfer to the reaction kettle, keep the reaction temperature at 120°C for 24h, and centrifuge and wash , dried under vacuum at 85°C to obtain the Cu-MOF structure material.

[0040]Weigh 2.0g of the above Cu-MOF structure material into a beaker, add 40mL of deionized water for ultrasonic dispersion (ultrasonic power and frequency are 100W and 40kHz, respectively), and then add 40mg of graphene oxide GO (mass fraction of graphene oxide solution 1.0%), ultrasonically reacted for 30min, and was washed and dried to obtain graphene-activated metal-organic framework electrode material GO—Cu-MOF.

[0041] The GO--Cu-MOF electrode material, binder and conductive carbon black were uniformly dispersed in NMP according to the mass ratio of 85:10:5, and then the electrode slurry was applied to the foamed nickel by a double roller machine, using 3M ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses graphene activated metal organic framework electrode material and preparation and applications thereof. The preparation method comprises the steps that soluble salt containing metal ions and organic ligands are added in a solvent, and reaction temperature is controlled within 100 DEG C-150 DEG C and maintained for 24h-30h so that MOF structural material is obtained; and the MOF structural material is ultrasonically dispersed in the solvent and then graphene is added, and reaction is performed for 10-60min so that the graphene activated MOF electrode material is prepared. The metal organic framework material has the advantages of being porous, high in specific surface area, adjustable in structure and diverse in structure and is simple in the material preparation process; and the metal organic framework material has excellent cyclic stability and high specific discharge capacity when the metal organic framework material is applied to superconductor electrode material, and specific capacitance is 280F / g and thus stability is great.

Description

technical field [0001] The invention relates to the technical field of electrochemical materials, in particular to a graphene activated metal organic framework electrode material and its preparation and application. Background technique [0002] Due to its outstanding performance in high-current charging and discharging, long cycle life and high power density, supercapacitors have become one of the country's major technological innovations and cutting-edge technologies in the field of new energy, and have been included in the "National Medium and Long-term It has important strategic and practical significance. Supercapacitors can be used in electronics, portable appliances, electric vehicles, aerospace, national defense and other fields. In the research of supercapacitors, carbon-based materials have small specific capacity and low energy density, and metal oxide materials such as ruthenium-based materials are expensive and toxic, which limits their commercialization. Ther...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): H01G11/50H01G11/32H01G11/86H01M4/70
CPCH01G11/32H01G11/50H01G11/86H01M4/70Y02E60/10
Inventor 凌红亚杨涛张燕萍
Owner 上海舒弗设备制造有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com